No statement of edition on the copyright page, but there is a complete number line: "P 10 9 8 7 6 5 4 3 2 1".
The copyright page contains the complete Library of Congress Cataloging in Publication Data including the year of publication (1988), the ISBN (0-89919-409-5), and the LCCN (88-4936).
Month of publication from the date/price code "09194588" printed on the front flap of the dustjacket.
"Jacket Design: Sara Eisenman" (over) "Jacket Illustration: James Marsh" printed on the back flap of the dustjacket.
"6-80601" printed on the back of the dustjacket along with the ISBN.